/*
Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries.
SPDX-License-Identifier: BSD-3-Clause-Clear

Redistribution and use in source and binary forms, with or without
modification, are permitted (subject to the limitations in the
disclaimer below) provided that the following conditions are met:

  * Redistributions of source code must retain the above copyright
    notice, this list of conditions and the following disclaimer.

  * Redistributions in binary form must reproduce the above
    copyright notice, this list of conditions and the following
    disclaimer in the documentation and/or other materials provided
    with the distribution.

  * Neither the name of Qualcomm Technologies, Inc. nor the names of its
    contributors may be used to endorse or promote products derived
    from this software without specific prior written permission.

NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE
GRANTED BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT
HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED
WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
    .section .text.init.enter, "awx", @progbits
    .global _start
    .type _start, @function
_start:
    jump hexagon_start_init
    .space _start + 0x180 - .

    .text
    .p2align 4

    .type event_handle_reset, @function
event_handle_reset:
    r0 = #0
    stid = r0
    jump coredump
    .size event_handle_reset, . - event_handle_reset

    .type event_handle_nmi, @function
event_handle_nmi:
    r0 = #1
    stid = r0
    jump coredump
    .size event_handle_nmi, . - event_handle_nmi

    .type event_handle_error, @function
event_handle_error:
    r0 = #2
    stid = r0
    jump coredump
    .size event_handle_error, . - event_handle_error

    .type event_handle_rsvd, @function
event_handle_rsvd:
    r0 = ##0xdeadbeef
    stid = r0
    jump coredump
    .size event_handle_rsvd, . - event_handle_rsvd

    .type event_handle_tlbmissx, @function
event_handle_tlbmissx:
    r0 = #0
    stid = r0
    jump coredump
    .size event_handle_tlbmissx, . - event_handle_tlbmissx

    .type event_handle_tlbmissrw, @function
event_handle_tlbmissrw:
    r0 = #0
    stid = r0
    jump coredump
    .size event_handle_tlbmissrw, . - event_handle_tlbmissrw

    .type event_handle_trap0, @function
event_handle_trap0:
    rte
    .size event_handle_trap0, . - event_handle_trap0

    .type event_handle_trap1, @function
event_handle_trap1:
    r0 = #9
    stid = r0
    jump coredump
    .size event_handle_trap1, . - event_handle_trap1

    .type event_handle_int, @function
event_handle_int:
    r0 = #2
    stid = r0
    jump coredump
    .size event_handle_int, . - event_handle_int

    .p2align 12, 0
    .type .EventVectors, %function
.EventVectors:
    jump event_handle_reset
    jump event_handle_nmi
    jump event_handle_error
    jump event_handle_rsvd
    jump event_handle_tlbmissx
    jump event_handle_rsvd
    jump event_handle_tlbmissrw
    jump event_handle_rsvd
    jump event_handle_trap0
    jump event_handle_trap1
    jump event_handle_rsvd /* 10 */
    jump event_handle_rsvd /* 11 */
    jump event_handle_rsvd /* 12 */
    jump event_handle_rsvd /* 13 */
    jump event_handle_rsvd /* 14 */
    jump event_handle_rsvd /* 15 */
    jump event_handle_int  /* Event number 16, Interrupt 0 */
    jump event_handle_int
    jump event_handle_int
    jump event_handle_int
    jump event_handle_int
    jump event_handle_int
    jump event_handle_int
    jump event_handle_int
    jump event_handle_int
    jump event_handle_int
    jump event_handle_int
    jump event_handle_int
    jump event_handle_int
    jump event_handle_int
    jump event_handle_int
    jump event_handle_int
    jump event_handle_int
    jump event_handle_int
    jump event_handle_int
    jump event_handle_int
    jump event_handle_int
    jump event_handle_int
    jump event_handle_int
    jump event_handle_int
    jump event_handle_int
    jump event_handle_int
    jump event_handle_int
    jump event_handle_int
    jump event_handle_int
    jump event_handle_int
    jump event_handle_int
    jump event_handle_int  /* Event number 47, Interrupt 31 */
    .size .EventVectors, . - .EventVectors

// TODO: Merge this code with reset vector.
hexagon_start_init:
    { r0 = #0
      r1 = #0 }
    { r3:2 = r1:0
      r5:4 = r1:0
      r7:6 = r1:0
      r9:8 = r1:0 }
    { r11:10 = r1:0
      r13:12 = r1:0
      r15:14 = r1:0
      r17:16 = r1:0 }
    { r19:18 = r1:0
      r21:20 = r1:0
      r23:22 = r1:0
      r25:24 = r1:0 }
    { r27:26 = r1:0
      r29:28 = r1:0
      r31:30 = r1:0 }
    dckill
    isync
    ickill
    isync
    r0 = ##.EventVectors
    EVB = r0
    r0 = ##__stack
    sp = and (r0, #-16)
    r0 = #0
    framekey = r0
	fp = #0
    jump hexagon_start_init1
    .size .hexagon_start_init, . - .hexagon_start_init
